The only government response I could find so far.
http://www.cbc.ca/news/politics/supreme-court-strikes-down-canada-s-prostitution-laws-1.2471572In a statement, Justice Minister Peter MacKay said the government would take the time to decide how to address "this very complex matter."
"We are reviewing the decision and are exploring all possible options to ensure the criminal law continues to address the significant harms that flow from prostitution to communities, those engaged in prostitution and vulnerable persons," his statement said.
MacKay also said there are "a number of other Criminal Code provisions" in place to protect sex-trade workers "and to address the negative effects prostitution has on communities."